Abstract: A rock crushing device includes a housing with a plurality of walls defining a chamber that has an upper inlet and a lower outlet. At least one of the walls is movable relative to another wall to define a primary compression assembly for crushing rocks within the chamber via mechanical force. There is an auxiliary crushing assembly connected with at least one of the walls to deliver a vibratory force to at least one wall for crushing rocks within the chamber. The auxiliary crushing assembly is operable together with the primary compression assembly or independent of it.

Abstract: A horizontal shaft impact crusher, including a crusher housing having an inlet for material to be crushed and an outlet for material that has been crushed. An impeller is mounted on a horizontal shaft in the crusher housing and is operative for rotating around a horizontal axis. Material to be crushed is accelerated by the impeller against a curtain. An adjustment device is provided for adjusting the position of the curtain relative to the impeller. The crusher housing includes at least two guide rails to which the adjustment device is slidably connected. A retaining device is arranged to hold, with a predetermined holding force, the adjustment device in a crusher operation position relative to the guide rails. The adjustment device is movable along the guide rails from the crusher operation position and away from the impeller in response to an excessive force being transferred from the curtain to the adjustment device and exceeding the predetermined holding force.

Abstract: A horizontal shaft impact crusher includes a crusher housing having an inlet for material to be crushed and an outlet for material that has been crushed. An impeller is mounted in the crusher housing for rotation about a horizontal axis. A curtain disposed in the crusher housing is arranged so material accelerated by the impeller is crushed thereagainst. An adjustment device, which adjusts the position of the curtain relative to the impeller, is slidable connected to guide rods. The adjustment device includes a locking device positionable selectively in either a holding state in which the locking device is de-energized and arranged to apply a holding force for holding the adjustment device in a crusher operation position relative to the guide rods, or an adjustment state in which the locking device is energized and arranged to release the holding force, thereby enabling displacement of the adjustment device relative to the guide rods.

Abstract: A jaw crusher includes: a crusher frame to which a cross member for connecting a pair of side wall plates is provided; a fixed jaw; a swing jaw swingably hung between the side wall plates; a pair of toggle link pins both of which are disposed along a common axial direction having a first outer end pivoted on the side plate and a second inner end pivoted on a main supporter provided to the cross member; and a reaction force-receiving link mechanism including a toggle link rotatably supported by the toggle link pin. The main supporter of the cross member on which the second end of the toggle link pin is pivoted is box-shaped.

Abstract: A screening machine on a frame with a hopper having a conveyor belt. The conveyor belt discharges particulate material poured into the hopper into a rotating barrel screen or vibrating planar screen for sifting the material. A hammermill apparatus is pivotably mounted on a hood member to an arm that is pivotably mounted to the frame of the machine. The hammermill is positioned above the conveyor belt at the discharge end. The hammermill can pivot upwardly relative to the arm upon striking a large object on the conveyor belt, and a spring mounted to the arm and the hood biases the hammermill back to its original position. A hydraulic ram is drivingly linked to the arm for manually or automatically displacing the hammermill relative to the conveyor belt.

Abstract: A mineral crusher comprises a roller 50 having a plurality of impeller bars for impelling mineral material against a collection plate 100, upon which a collection of mineral material accumulates. The material thrown against the accumulated material is reduced by impact with the accumulated material. The collection plate is adjustable, so as to adjust the size of mineral accumulation, and is tiltable so as to spring away from the roller when oversize objects, eg pieces of metal or blocks of wood pass through the crusher. The arrangement may have an advantage of incurring reduced wear on the collection plate 100, which may require less frequent replacement. The collection plate 100 is relatively easy to manufacture.

Abstract: A materials grinder includes a rotary grinding drum and a shear bar cooperating with the grinding drum to grind various types of materials. The shear bar is mounted on a pivotal structure adjacent the materials grinding drum. A displaceable biasing member biases the pivotal structure toward the grinding drum to maintain the shear bars in close cooperating relationship therewith. If ungrindable materials are encountered, the pivotal structure pivots away from the grinding drum against the bias force of the biasing member to permit the ungrindable materials to pass between the grinding drum and the shear bar. Once the ungrindable materials pass, the biasing member moves the pivotal structure back toward the grinding drum. Materials to be ground are fed to the grinding drum by means of an infeed conveyor and an overhead infeed roller.

Abstract: The invention concerns an impact crusher 1 with a rotor 3 equipped with blow bars 4 and pivotably-mounted impact aprons 5, 6 arranged in the crusher housing 2, the impact aprons are positionable vis a vis the rotor by means of hydraulic cylinder-piston units 7 via piston rods 8. In a prior art impact crusher, additional mechanical devices are provided locally alongside the hydraulic retaining and positioning device 7, 9 to prevent the impact aprons 5 dropping into the tip circle circumscribed by the blow bars 4 of the rotors 3 in case of failure of the hydraulics. The invention provides additional devices connected to the corresponding hydraulically-actuatable retaining and positioning device 7, 9, using the latter's piston reds 8 to form homogeneous units 12.

Abstract: A tub grinder for grinding animal feed and the like of the type having a hammer mill extending below a stationary floor about which a tub side wall rotates, incorporates a rear discharge opening formed in a rear side wall of the hammer mill and includes deflector plates extending across an end wall of the grinder for directing material out the discharge opening to the rear of the tub grinder. Shear plates are adjustably secured to an end wall of the hammer mill housing. The shear plates are oriented in overlapping and angled relationship with respect to one another and to prevent ground materials from accumulating on the shear plates particularly when wet. Sickle blades are retractably positioned in the mill side walls for providing additional cutting action. Further, hammer assemblies are modified to include a knife edge and a face plate.

Abstract: Householders separate metal cans, plastic bottles, containers and similar items from other garbage. The crushing apparatus is carried on the recycling truck, and the driver tosses these items into the apparatus for crushing. The apparatus has a rotating crusher rotor (12) which forms a pinch-throat against a concavely-curved crusher plate (27). A crammer (40) is driven into reciprocation to cram the larger items into the mouth of the pinch-throat. A rubber pad (49) on the crush plate creates friction to assist in the grabbing the item into the mouth.

Abstract: A plunger can structure and a mated spring compressor system. The plunger can includes a plunger tip and an indicator rod extending from the plunger tip through the plunger can and out the opposite end of the plunger can. Removal and replacement of a shim between the plunger tip and the roller assembly which adjust the force on the roller assembly, can be easily accomplished without opening the clamshell doors to the mill by drawing the indicator rod out of the opposite end of the plunger can to effect a drawing in of the plunger tip.

Abstract: A spring canister for use in a coal pulverizer to impart an axial load to a bracket assembly supporting a grinding wheel or roller. The axial load causes the bracket assembly to pivot downwardly to increase the grinding force between the wheel or roller and the grinding bowl.

Abstract: A crushing device for crushing material such as scrap metal and refuse has a housing with a material feeding section and a material removal section for removing crushed material. A shaft with a rotor connected thereto is rotatably supported in the housing. The rotor comprises crushing members. The housing has abutments for cooperating with the crushing members. The feeding section is positioned below a horizontal plane in which the shaft is positioned. An outlet is positioned, when viewed in the rotational direction of the rotor, directly adjacent to and lower than the material feeding section for at least partially replacing the removal section.

Abstract: Apparatus for reducing particulate materials such as paper-making pulp, including a housing defining a working chamber having an inlet and an outlet for flow of particulate material therethrough. There is a rotary shaft supported in said housing, and rotors and stators are mounted on the shaft within said working chamber. Radially extending annular rigid refining surfaces are mounted on the outer portions of the rotor plates and stator plates and the rotor plates and stator plates provide complementary rigid refining surfaces mounted in the chamber and cooperating in confronting relation with the refining surfaces so that in the relative rotation of the refining surfaces particulate material flowing through the working chamber and between the refining surfaces is refined. The refining surfaces are capable of having a wobbling motion with respect to the portions of the plates mounted on the shaft.

Abstract: A method and apparatus for processing discarded rubber tires and rubber tire material to reduce the same to a pulverulent form of sufficient quality fiber the manufacture of other articles. Principally the rubber tire is subjected to repeated compression against the metal strand component of the tires thus causing the metal stranding to cut into or chew the rubber into a pulverulent form. During the processing of the rubber tire material it is broken down to the point that its constituents such as metal fibers and polymer fibers are separated therefrom. The pulverized rubber, together with its separated constituents may then be classified and the constituents separated for further use. The rubber tire processing apparatus incorporates an external housing structure and a rubber processing drum that is rotatable therein.

Abstract: A materials grinder for comminuting large "chunks" of aggregated material having a conveyor for transporting quantities of materials, including large "chunks" thereof, and a grinder having a large chamber for receiving and grinding the material into smaller and generally uniform sized particulates wherein the grinder is comprised of upper and lower grinding drums to said lower grinding drum, the guide means including breaker bars for controlling the flow of materials adjacent said grinding means and for determining the size of the particulate ground at each grinding drum.

Abstract: An improved crusher with first, second and third curtain assemblies. Each curtain assembly mounts a series of crusher plates and the plates of its curtain assemblies are distributed circumferentially above a rotor in the crusher. The three curtain assemblies pivot or swing about a common pivot axis. Gravity biases the third curtain assembly whereby the breaker plates are urged toward the rotor of the crusher. Springs and curtain rods are part of structure additionally biasing the third curtain assembly.

Abstract: A substantially one-piece cast plunger can structure and a mated spring compressor system. The plunger can includes a removable plunger bearing on one end that is attached to the plunger can with both interlocking lugs and bolts and is designed for removal with a spring compressor that holds it in place.

Abstract: A vibrating jaw crusher which includes a housing, in the inside of which there are operatively mounted a pair of working jaws. The pair of jaws includes at least one movably mounted jaw. The working surfaces of the rigid and the movable jaws are shaped in the form of a convex and a concave broken (polygonal) line, respectively. The movable jaw is driven by means of a vibrator. The movable jaw is supported by means of elastic elements connected to the top and the bottom end of the jaw. In a preferred embodiment of the invention the rigid and the movable jaws are fastened by means of an axle at their top ends, while their bottom ends are supported by means of elastic elements, which are shaped as rubber pads.

Abstract: In a crop conditioner having a frame and first and second rolls each rotatable about an axis of rotation, a mounting assembly for the first roll includes a sub-assembly at each end of the first roll which permit the first roll to be pivoted relative to the second roll. Each sub-assembly has a mounting plate rotatably supporting one end of the first roll and supported on the frame for pivotal movement about a pivot axis which is generally parallel to and displaced from the axis of rotation of the first roll such that the axis of rotation of the first roll is movable relative to the axis of rotation of the second roll between a first position, a second position and a third position. The second and third positions of the first roll are progressively farther away from the axis of rotation of the second roll than the first position.

Abstract: The present invention pertains to a system and a method for recovering salvageable ferrous and non-ferrous materials from incinerated waste materials including friable, carbonaceous incineration byproducts such as ash and associated ferrous and non-ferrous metal components. The system includes at least one crushing means for selectively comminuting friable material comprised of a rotating roll having at least one protrusion, preferably a weld extending transversely to the direction of rotation of roll, on its exterior cylindrical surfaces in spaced relation to a backing plate. The backing plate is urged toward the roll by a bias means exerted a preferably adjustable pressure sufficient to comminute the friable carbonaceous material to a desired size, and insufficient so as to permit the backing plate to retract and allow passage of ferrous and non-ferrous components in the waste material through the crushing means substantially uncomminuted.

Abstract: There is provided a miniaturized document shredding device having engaging dual frictional conveyor rollers rotatably mounted within an enclosure. Fixed cutting blades are spaced across the width of the rollers and protrude through slits within the rollers to present cutting edges at the point of engagement of the rollers. In one embodiment these blades are mounted to the enclosure and protrude through the rollers, and in a second embodiment are mounted to the roller shafts between roller segments. With this arrangement, documents dropped through the top opening in the enclosure are picked up by the frictional rollers and conveyed by the rollers past the cutting blades to produce a shredded product.

Abstract: A mechanical spring journal assembly (20) particularly suited for use in a bowl mill (10) of the type that is employed for purposes of effectuating therewithin the pulverization of material such as coal. It is through the operation of the subject mechanical spring journal assembly (20) tht there is established the magnitude of the forces which the grinding rolls (18) of the bowl mill (10) apply to the coal for purposes of accomplishing the pulverization of the coal.

Abstract: The invention concerns a rebound crusher having at least one rotor provided with hammers which is mounted rotatably in a crusher housing and cooperates with at least one rebound mechanism which is arranged swingable against spring force within the crusher housing and the distance of which from the hammers of the rotor is adjustable. In order, in a space-saving development, to permit remote adjustment of the nip between hammers and rebound mechanism, the rebound mechanism is pivotally connected to the piston rod of a damping piston which rests against the crusher housing and the front end position of which is infinitely variable via an adjustment piston of a setting cylinder.

Abstract: A coiled spring system (20) particularly suited for use in a bowl mill (10) of the type that is employed for purposes of effectuating therewithin the pulverization of material such as coal. It is through the operation of the subject coiled spring system (20) that there is established the magnitude of the forces which the grinding rolls (18) of the bowl mill (10) apply to the coal for purposes of accomplishing the pulverization of the coal. The subject coiled spring system (20) includes stud bearing housing means (36), preload stud means (38) suitably supported from the stud bearing housing means (36), pressure spring means (40) positioned in surrounding relation to the preload means (38), and spring housing means (42) encircling the pressure spring means (40).

Abstract: A pneumatic system for exerting a downward grinding force on the roller assemblies of a roller type grinding mill. The pneumatic system consists of a plurality of resilient and flexible pneumatic cylinders or bellows operatively connected through a crank arm, a horizontal rotatable shaft and lever to the roller assembly. The flexible pneumatic cylinders exert an upward force on the crank arm which in turn exerts a downward force through the rotatable shaft and lever on the grinding roll. Vertical movement and vibration of the roller assembly is absorbed by the flexible cylinder to maintain a steady grinding force on the rollers.

Abstract: A mineral breaker comprising a breaker drum rotatably mounted in a casing which extends about a portion of the periphery of the drum to partially envelope the drum, the breaker being adapted for connection to the delivery end of a conveyor so as to be capable of breaking lumps of mineral being delivered from the conveyor and deposit the broken material to a position below the conveyor.

Abstract: This invention relates to an improvement in a single-roll crusher having a housing, a roll body freely rotatably supported on an eccentrically rotatable drive shaft in said housing, at least one laterally mounted crushing beam pendularly suspended in the upper part of said housing and resting in the lower region thereof at approximately the height of the roll body axis, by means of a pressure bar, against a prestressed set of springs solidly integrated in the crusher housing in order to absorb the crushing force, the prestressing force also being adjustable when the set of springs is integrated and the gap adjustment at the exit of the crushing space is achieved by changing the spacer thickness between the pressure bar and a spring retainer, the improvement comprising bayonet lock means holding the prestressed set of springs in the crusher housing, the prongs and mating prongs of said bayonet lock means mutually engaging and releasing each other in assembly and disassembly, and key means pressing the support

Abstract: An impact crusher wherein hard particulate material is comminuted during travel between a rotor provided with beaters and a pivotable impact or grinding means, the latter being mounted in the housing of the crusher at a level above the rotor and tends to pivot by gravity and/or by spring force in a direction to reduce the width of the gap between its lower portion and the periphery of the circle swept by the rotor beaters. The impact or grinding means is pivotable by feed screws which are articulately connected thereto and extend upwardly through openings in the top wall of the housing. The outer portions of the feed screws are rigid with a crosshead which can be moved up and down by a double-acting hydraulic cylinder and piston unit which has an appropriate lost motion to allow the impact or grinding means to yield in direction away from the rotor.